Remote Customer Success Engineer (LatAm) – Contract

mercor; Argentina; Remote; ARS 53,056,000 - 75,794,000; Part time

Job summary

Mercor, a remote LatAm Customer Success Engineer role, seeks an engineer to investigate issues end-to-end in our AI SaaS stack and guide customers with precise, empathetic support. You will debug, triage, and document runbooks while collaborating with engineering and product teams to surface patterns and risks. A CS/SE degree and 2–5 years in customer-facing web apps are required.

Experience with OpenAI APIs and LangChain is a plus.

Qualifications

• Ability to debug web applications.
• Degree in Computer Science, Software Engineering, or related technical field from a top-tier institution or prior experience at a high-growth technology startup.
• Experience building modern web applications ( React , Node , Flask , Next.js , etc.).
• 2–5 years of experience supporting customers on such web applications.
• Comfortable with AI systems . Experience with LLMs , agents, or generative models.
• Experience exploring behavior of AI tools (fine-tuning, prompt chains, chain-of-thought debugging, or building agents).
• Ability to understand model outputs, failure modes, hallucinations, and feedback loops.

Responsibilities

• Investigate talent-reported issues end-to-end. Reproduce bugs, identify root causes, and separate UX friction, model edge cases, and system defects.
• Debug across our AI + SaaS stack using telemetry, logs, network inspection, and database queries to understand production behavior.
• Triage with sound judgment. Escalate true engineering issues and resolve others via configuration, prompt refinement, or clear user guidance.
• Surface systemic patterns and product risks to engineering and product leadership.
• Create clear documentation and runbooks to reduce repeat issues and improve resolution speed.
• Communicate with precision, professionalism, and empathy.

Skills

Web debugging

Customer support

AI systems

Model outputs understanding

Education

Degree in Computer Science or related field

Tools

OpenAI API

LangChain

Job description

Mercor, a remote LatAm Customer Success Engineer role, seeks an engineer to investigate issues end-to-end in our AI SaaS stack and guide customers with precise, empathetic support. You will debug, triage, and document runbooks while collaborating with engineering and product teams to surface patterns and risks. A CS/SE degree and 2–5 years in customer-facing web apps are required.

Experience with OpenAI APIs and LangChain is a plus.